Combined ice-cream cabinet and refrigerator



Aug.- 10,1925. 1,595,106

C. B. LONGSTRETHA v COMBINED ICE CREAM CABINET AND'REFRIGERATOR File@ April l, 1925 PE: l

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Patented ug. 10, 1926.

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CHARLES B. LONGSTRETH, OF DENVER, COLORADO. .Y

COMBINED ICE-CREAM CABINET .AND REFRIGERATOR.

Application filed April 1, 1925.VA Serial No. 19,779..

This invention relates to improvements in ice cream cabinets and refrigerators.

In the storage of ice cream. it is necessary thatthe containersshall be kept at atemperature well below rfreezing' for if they are -fied form.

v This 'not .the ice cream will become soft. necessitates the employment of a freezing mixture of ice and salt which permits a tem- 'perature approaching zero to be obtained. It has therefore been customary to provide ice cream cabinets having a compartment large enough to contain several containers of ice cream and to pack ice and salt about the containers. The ice will, of course, gradually melt and produce a brine which has customarily been permitted to drain directly into the sewer. The brine as it leaves the compartment will have a low temperature and it is evident that it is well adapted to be employed as a cooling1 medium where somewhat higher temperatures are suificient. l/Vhere milk, butter, eggs and meat are kept, the .temperature should never fall below the freezing point as these articles do vnot need to be refrigerated to such low temperatures.

It is the object of this invention to produce a combined ice cream cabinet and a refrigerator wherein the chamber of the refrigerator portion shall have its temperature reduced by means of the brine that escapes from the ice cream cabinet.

My invention, briefly described, consists in a refrigerating device having two separate heat insulated compartments., one of which is adapted to serve as a holder for the ice cream cans and the freezing mixture. The other compartment is separated from the first by a wall of heat insulating material and has a double bottom and sides which form chambers through which the brine from the first compartment must flow before it escapes into the sewer. The cold brine serves as the refrigerant for the second compartment which may be used for storing r milk, butter and other things that do not require a low temperature.

In order to describe my vinvention with more particularity and greater clearness, I shall have reference to the accompanying drawing in which I have illustrated the preferred embodiment thereof and in which- Fig. 1 shows a top plan view of my improved refrigeratng device.

Fig. 2 is a section taken on line 2 2 Fig. 1. l i

Fig. 3 is a section taken on line 3 3 Fig. 2 and v Fig. 4 shows a sectional view of a modi- The view corresponding to a section taken on line 2 2 Fig. 1. I have illustrated a fixture having a top 1, ends 2, 3 sides 4, 5 and'bottom 6, atransverse wall 7 separates the interior spaceinto two compartments A and B. The interior of both compartments have a lining 8 of sheet metal, such as galvanized iron, zinc or copper. Compartment A has been shown as of the proper size to receive siX ice cream containers 9 directly vabove each of which is a removable cover 10. The compartment B has a false bottom 11 and sides 12 that are spaced from the bottom and corresponding sides of the compartment. and sides 12 form a box the upper edges of whose sides are bent outwardly and secured to the vertical sides of the compartment B, as by solder, so as to form a water tight space C. An opening 13 connects the interior of the compartment A with the space C so that the brine from compartment A will pass into and through the space C on its way to the outlet 14 through which it escapes. Compartment A is also provided with a drain 15 located near its bottom. This drain is usually plugged except when the entire compartment is to be drained as for example when it is cleaned. When the drain 15 is plugged, the brine escapes through the outlet 14vwith the result that the spaceC is always practically full of brine which reduces the temperature in the compartment B which is so proportioned that the temperature never falls below freezing. The partition wall 7 is made of heat insulating material for if it were not the temperature within the chamber B would become too low. Vhen the device is constructed in the manner explained, the compartment B will be dry as the brine is not exposed. Grates 16 and 17 may be provided in compartment B which is also provided with a cover comprising two hinged sections 18 and 19.

Where dry cold is not essential, the chamber corresponding to chamber B in Figs. 1 and 2 and designated as Ba in Fig. 4 may The bottom 11 l each otI tight lining, one osaid compartments bein@F adapted ,to contaiiifa freezing mixture coininerely be provided with a shallow pan 2O into which the brine overflows through the pipeQl rand from which it escapes through tlieppe 22. This chamber may be provided With shelves 23 and 2li.

It will be noted that in both of the cinbodimeiits desoibed, I employ the brine from the compartment A for thelpnijpose of cooling the chamber B' thereby saving the ice that would otherwise bezreqnired to reduce the temperature o this chamber.

lHaving .now vdescribed my invention, what I claiin as new is vfbcombined ice or aincabinet andre-frige erator comprising, in combination, asingle box like casing' having Walls of heat insulating material, and a transverse partition Wall, also of heat insulating material, Which 'divides the yCasinginto two compartments, saidy compartments fhaviiig a Water prising Cracked ice and salt Wllioh ,forms a g Legame brine when the ice melts, the other comparte nient being provided With an inner box like .member olf-the saine shape as .the compartand having .itsiipper edge formed into an outwardly extending flange Whose outer elgeiis secured Lto the inside of the coinpartnient vso as to form a water tight space Kabout the b ox :like ,meinbeig i, saidA transverse partition havingvr an opening into space trom thecoin iartineiitr eontainine the 'freez- Y :n

ing mixture, the outer xWall of the :cabinet :having an ,outlet V.opening `from .said Water tight spaeeito the' oiitside,rsai1d outlet 1opening being located a shortT distance above `the bottom.

In testimony ture.

Ciriiiiiiiiie e. LONGSTRETH.

whereof .I @fr vmy jsigna- Y 

